20613495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4177}}^1$

素因数の和:4239

約数の個数: 32

約数和(自身を含む): 38504448

約数和(自身を除く): 17890953

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4177, 4935, 12531, 20885, 29239, 62655, 87717, 146195, 196319, 438585, 588957, 981595, 1374233, 2944785, 4122699, 6871165, 20613495]

約数ペア:

[(1, 20613495), (3, 6871165), (5, 4122699), (7, 2944785), (15, 1374233), (21, 981595), (35, 588957), (47, 438585), (105, 196319), (141, 146195), (235, 87717), (329, 62655), (705, 29239), (987, 20885), (1645, 12531), (4177, 4935)]